The Decomposition of Transition Metal Tetrafluoroborates by some strong Base Ligands

Abstract
Some transition metal complexes of triethylene-diamine (TED, I) and quinuclidine (Q, II) have been reported.1–5 Recently we treated I and II with metal bistetrafluoroborates (M=Co2+, Ni2+, and Cu2+) which have not been studied yet, and postulated that pure coordination complexes might be obtained. However, evidence for the existence of 1:1 adducts such as C6H12N2:BF3 (III) and C7H13N:BF2 (IV) in treatment of I and II with metal bistetrafluoroborates has now been found. We wish to describe our results concerning formation of these two new 1:1 adducts in this letter.